Definition of fugacious in English:

adjective

Its flowers, however, are very fugacious, so much so that it is difficult to obtain good specimens, the mere gathering causing them to fall; hermaphrodite flowers, though carefully sought, were not seen.

fugaciousness

If you are hunting, forget all about accounts collectable, bills unpayable, your wife's parting remarks, the fugaciousness of time, and the seductiveness of the next field.

The title ‘still living’ is an obvious allusion to the art historical genre of the still life - depictions of Vanitas alluding to the passing of time in general and to the fugaciousness and transience of all human life.

‘Eclipses’ is the title given to a cycle of paintings (oil painting on beeswax) and drawings (gouaches, graphite on Japanese paper) that explores the butterfly phenomenon as an image of fugaciousness.